100% Original WITH Box FC-M5100-1 SHIMANO DEORE - MTB Crankset - 2-PIECE CRANKSET - Q-factor 178.5 mm - Chain Line 52 mm - 1x10/11-speed The SHIMANO DEORE FC-M5100-1 mountain bike crank delivers precise and reliable shifting for 1x10 or 1x11-speed drivetrains. 2-PIECE CRANKSET increases rigidity of crankset with less weight and transmits pedaling force efficiently For 10/11-speed PRODUCT SPECIFICATIONS MODEL NO FC-M5100-1 SERIES DEORE M5100 Series Color Series Color 2-PIECE CRANKSET ✔ Chainring combination 30T, 32T Compatible bottom bracket type_Outboard ✔ Crank fixing screw included ✔ Crank arm length (mm)_170 ✔ Crank arm length (mm)_175 ✔ Spider/Gear arms 4 Optional chain guard_Without chain/bash guard ✔ Recommended bottom bracket_Press-fit BB-MT500-PA Recommended bottom bracket_Threaded (normal) SM-BB52 Threaded bottom bracket shell width (mm)_68 ✔ Threaded bottom bracket shell width (mm)_73 ✔ Q-factor (mm) 178.5 Chain line (mm) 52 Compatible chain HG-X11 11-speed HG-X 10-speed P.C.D. (mm) 96 Rear speeds 11 / 10 O.L.D._QR/Nut (mm) 135, 141 O.L.D._Thru (mm) 142, 148